220445091220 has 12 divisors (see below), whose sum is σ = 462934691604. Its totient is φ = 88178036480.

The previous prime is 220445091211. The next prime is 220445091233. The reversal of 220445091220 is 22190544022.

It can be written as a sum of positive squares in 2 ways, for example, as 173052672016 + 47392419204 = 415996^2 + 217698^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5511127261 + ... + 5511127300.

It is an arithmetic number, because the mean of its divisors is an integer number (38577890967).

Almost surely, 2^220445091220 is an apocalyptic number.

220445091220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220445091220 is an abundant number, since it is smaller than the sum of its proper divisors (242489600384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220445091220 is a wasteful number, since it uses less digits than its factorization.

220445091220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11022254570 (or 11022254568 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 220445091220 in words is "two hundred twenty billion, four hundred forty-five million, ninety-one thousand, two hundred twenty".